Question

ans plz plz plz plz plz plz​

Answer 1

1). Forest are called lungs of mother Earth because forests are full of trees that produce oxygen , fruits, etc for the survival of the earth as like lungs in humans

2). When we keep egg in nitric acid (HNO³) the egg shell (CaCO³) will dissolve in the medium by reacting it . It will make egg bouncy

3). Iron (Fe ) get rusted when kept openly in the air because iron react with moisture/water present in the atmosphere and form iron oxide (Fe²O³)